/Engine/Source/Editor/StatsViewer/Public/IStatsPage.h
Totals are displayed by mapping the CPP name of the columns property to the total string in the OutTotals map.
void GenerateTotals ( const [TArray](API\Runtime\Core\Containers\TArray)< [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UObject](API\Runtime\CoreUObject\UObject\UObject) > > & InObjects, [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), [FText](API\Runtime\Core\Internationalization\FText) > & OutTotals ) const